Book cover



March 10, 1925.

R. J. coPELAND BooK cov'ER v Filed Aug. 22, 1921 rllllll f/ /f/ lll/lllv Inven for.

g. PM/ fw 4g/aww.

Patented Mar. 1o, 1925. y

UNITED kSTATES PATENT OFFICE.

` noon covnn.

Application inear August a2, 1921,. `seriai No. 494,196.

To all 'whom t may concerne:

Be 1t known that I, ROBERT J AMES Corn` yLAND, a subject of the King of Great Britain, and resident of the city of Toronto, y

` of sections of vulcanized iibre.

county of York, Provinceof Ontario, in the Dominion of Canada, have invented certain new and useful Improvements 1n Book f Covers, described inthe following specification .and illustrated in the accompanying drawings, that form part ofthe same.

The objects of tbisinventionare, to pro- `vide a cover for books which are subject to are accurately fitte'd'andl maybe rigidly considerable handling which will withstand theheavy service and will effectively protect the leaves of the book.

The principal feature of the invention consists in the novel construction and arrange ment of a plurality of sections of a tough,

homogeneous material such as vulcanized` fibre assembled together in overlapping arrangement to produce a rigid cover structure having wear resisting edges.

In the drawings Figure 1 is a perspective view showing the panel partly broken away.

Figure 2 is an enlarged detail of one of the corners of the` frame illustrating the manner of interlocking the under side sections. j

Figure 3is an enlarged longitudinal section of the cover.

Figures 4 and 5 and 6 are enlarged perspective details of portions of the frame and the interlocking member.

The cover frame is formed of a plurality The hinge strip 1 has secured kto its under side a thinnerv strip 2 which lis of greater width and projects forwardly forming a ledge 3. This under strip is of lesser length` than the strip 1 and abutting the `ends of said under strip are the bottom side strips 4 which extend beyond; they end edges of the hinge strip 1 and project forwardly.

Upper side strips 5 of .equal thickness to the strip 1 and extending to the outer edge of the bottom strips 4, are arranged to abut the ends ofthey strip 1.- The upper side strips are of lesser width than the bottom sidestrips and said bottom strips thus form the side ledges 6. j i

A bottom end strip 7 of substantially equal width to the-side strips extends between the outer ends of the bottom side strips fand is yhere shown with tongue porltions 8 interlocking-with the corresponding desired.

recesses 9 in the side strips. Similar inters locking tongues may be arranged to connect the bottom hinge strip and the side strips.

A `top end strip 10 of similar dimensions to the top side strips is arranged upon the bottom end strip 7 at its outer edge thus leavingy `an end ledge 11 at the inner side thereof. Y

'Corner blocksf12 of angular shape and of equal. thickness to the topy side and end strips completetheframe structure.

The various sections shaped as described secured together by riveting or in any suitable manner but I show herein a special manner of connecting same.

The under sides of the top strips and corner blocks are formed with a continuous groove 18 and into this groove is fitted a metal stri-p14, which is preferably doubled and formed with pairs of lugs 15 projecting downwardly. `These lugs extend through slots 16 cut in the bottom strip and are spread apart as shown in Figures 2 and 3. The metal strips 14: rigidly are secured in the upper fibre strips by transversely arranged pins 15 inserted through the side walls. j

This arrangement forms a very rigid means of connecting the various sections and it also stifi'ens` the whole structure.

vFlatstrips 17 preferably of sheet metal are arranged to re-enforce the joints between the several top sections and these are secured by rivets extending through the top and bottom strips.

A panel 18 preferably formed of mill board is adaptedto rest upon the ledges 3, 6 and 11 and to this panel is secured a smaller panel 19 fitting snugly between the bottom strips. The panel thus formed is securely riveted to the bottom ledge strips and the whole structure is thus rigidly united.

' The upper surface of the panel 18 may be depressed below the top of the frame to protect the facing material placed thereon if The vulcanized fibre is strong and durable and is capable of receiving a polished finish andfan article of excellent appearance as well as great strength and durability is produced.

. What I claim as my invention is 1. A book cover comprising a frame composed of a plurality of sections .of a tough homogeneous inztterial fitted together in superposed strips arranged to overlap, the lower strips promoting' inwardly beyond the upper strips and "fornu'ing` `le lges,"and 'a panel having ledges fitting' over the trarne ledges and rigidly secured thereto.

2. A hook cover eoinprieing u hinge 'Seotion formed oit upper and lower Strips thcl loW'erSti-ip projecting-heyond the front side #forming zrle'dgk site sections formed oit upper Stripe"almttinglthe'ends oil' the upper hinge strip end-lower strips' `olgreat-er Width fprojer ing" iimurdly 1an`dorining' leslgri'os1 nu `I`end se'etion Y"formed in 'upper and lower l"i"*Stripslthefloiver y'strip projecting` irm'ardl)7 to form a ledge, means for rifridlyY eounerting the' vri'ous Strips a'ndseotions together7 'fn'd u'nzrneli rigidly Secured to eaid'ledgee.

3. A hook Cover'1'Comprising altrzune coinhomogeneous material `fftted ktogether rin unrpos'ed' strips Marranged to' overlap, one f'set 'ot Snid stripshnving :t Continuons groove formed in thefface alb'utting the otherfcetY of Slots therethrolifgh arran'frerl to5 register with the groove, a metallic strip rigidly secured in the continuous grooue and connecting the in'elnbers 'of the set "and *having projecting lugs adapted to extend through the slots inthe other set or" strips and t0 he locked nengzlgemei-it therewith.

4. A hook cover comprising' n` 'frame coluposed of a plurality of sections ot urtoug'li homogeneous vinfrt'erial Afitted together in Sunernosefl stripe Iarranged 7to overleg, one Set of strips haring ya Continuous .groove iormed in tlieffaceulouttingz the ethernet of `strips" und theY otlierfset A`of f-l'ripslmving @lote therethrough arranged to register with the:groo\'f'e--f1y metallic-strip :Wrangell in -sasid -gloore `und l`Co'nnect-ing the several ,Ljrooiednienhersu pins inserted trausVorSe-- ly' of the .fstri'ps-th'rough' Seidmetalstripr vandi'lugs on rSuidmetallicstrip adapted to extend-through the SlotsY inl the Vother ySet of to look the lstrips together.

` ROBERTk J. i oornnwn. 

